Description
Use-after-free vulnerability in the JSON.stringify method in js3250.dll in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMonkey before 2.0.12, might allow remote attackers to execute arbitrary code via unspecified vectors related to the js_HasOwnProperty function and garbage collection.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | iceape | 2.0.11-3 | DSA-2180-1 |
| Debian 6.0 | icedove | 3.0.11-1+squeeze1 | DSA-2187-1 |
| Debian 6.0 | iceweasel | 3.5.16-5 | DSA-2186-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 3.6.14-4.el6_0 | RHSA-2011:0310 |
| RHEL 6 | xulrunner +1 | 1.9.2.14-3.el6_0 | RHSA-2011:0310 |
| RHEL 5 | firefox | 3.6.14-4.el5_6 | RHSA-2011:0310 |
| RHEL 5 | xulrunner +1 | 1.9.2.14-4.el5_6 | RHSA-2011:0310 |
| RHEL 4 | firefox | 3.6.14-4.el4 | RHSA-2011:0310 |
Advisories 4
- RHSA-2011:0310 Red Hat Security Advisory: firefox security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2180-1 iceape - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2186-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2187-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://downloads.avaya.com/css/P8/documents/100133195
- 46661 vdb-entry
- oval:org.mitre.oval:def:14476 vdb-entry signature
- https://bugzilla.mozilla.org/show_bug.cgi?id=616009
- http://www.mozilla.org/security/announce/2011/mfsa2011-03.html
- MDVSA-2011:041 vendor-advisory
- 20110302 ZDI-11-103: Mozilla Firefox JSON.stringify Dangling Pointer Remote Code Execution Vulnerability mailing-list
- http://www.zerodayinitiative.com/advisories/ZDI-11-103/
- https://bugzilla.mozilla.org/show_bug.cgi?id=619255